I just finished reading Jane Eyre for the first time last week. I absolutely loved it. There were so many similarities to the Twilight Saga at times, it was uncanny.
Excellent points so far. I'd also like to add that Mr. Rochester felt unworthy of Jane all throughout the book, especially in the beginning (that didn't necessarily stop him from going for her, though). Inwardly, Mr. Rochester was utterly ashamed of who he had become. He destested his past and his mistakes. Through Jane, he felt he could possibly overcome these feelings. Also, the progression of Mr. Rochester's attitude and features range from dark and brooding, to a little lighter and even happy, and it's not until we start to see the love grow between the two that we see his features soften--and we learn why he has been so hardened.
It was the same with Edward Cullen. He was dark, mysterious, brooding and quite aloof, yet he was strangely drawn to Bella and could not help but want to be with her, even despite his hatred for who he was. As Bella and Edward grew closer, Edward softened and began to feel feelings resurface that he forgot he had.
There are countless similarities between Jane and Bella: their refusal of lavish gifts and jewelry; their refusal to ride in the "fancy, ridiculous" cars and carriages; the way neither of them are scared of their Edwards--because for some reason they don't feel they have anything to fear; their plain features and clothes; even right down to their wedding day: neither girl remembers to look in the mirror.
I loved all the tiny similarities: the frequent references to the beauty of "twilight"; the symbolism of eclipses; the talk of mysterious creatures like vampires; the thought of barking of wolves in the distance.
I think it's these three-dimensional, heoric women and these vulnerable, byronic heros that make for a great, gothic romances.